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Clicking the crop icon brings up a crop window that lets you crop the image using standard controls. After cropping an image, if you click to crop it again you get the whole frame back, which is good from a safety perspective in case users accidentally crop out data they need. In our paper prototype, we had this crop window popping up immediately after you pressed the take snapshot button, and the image was not inserted until you cropped it. Our paper prototype testers complained about the drag on efficiency that this caused, though. Therefore we revised our design to insert the frame directly, and allow users to come back and crop it after they were done taking crucial notes.
Figure 13. Green highlighting of notes corresponds highlights notes that were taken at the point you're at in the video.
When reviewing notes, green highlights the notes that were taken at the current point in the video, as seen in Figure 13. The highlighting advances as the video plays, or as the user uses the scrubber bar to fast-forward through the video. The user can also click on notes to highlight them and cause the video to jump to the corresponding location. One of our heuristic evaluators found the green highlighting confusing, since we also have normal blue highlighting when users select text for text editing purposes. However, since it is important to distinguish between the two types of highlighting, and since our other heuristic evaluators considered it to be a positive feature, we did not change this from our computer prototype.
Figure 14. Video player can be enlarged.
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